Sixty years ago, Huang Chunxiang (played by Tan Aizhen), a young girl in the mountains, accidentally saved Yan Wangcai (played by Ding Qiang) who had mistakenly taken an aphrodisiac and fainted while collecting medicine in the mountain. They fell in love at first sight. Unfortunately, they later parted ways sorrowfully under the beautiful paulownia rain. Chunxiang kept the watch that Wangcai left for her and waited for a lifetime, which was as tragic and beautiful as a dream. Chunxiang has always been looking forward to the day when Wangcai will come back to find her. It was this deep affection that moved and fascinated Xie Fu'an (played by Chen Qian), the granddaughter of Chunxiang... "If only I could have such a beautiful first love, I don't know how wonderful it would be..."